Coating Is Predominantly Organic Material Patents (Class 205/235)
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Patent number: 10074453Abstract: Polypyrrole/carbon (PPy/C) composite doped with organic anion p-toluenesulfonate (pTS) is utilized as an electrode in supercapacitor for energy storage application. The surface initiated in-situ chemical oxidative polymerization yields a composite material PPy/C in the presence of varying concentrations of pTS. The novelty of the present invention lies in the doping of PPy/C composite with organic anion pTS and consequent enhancement of its electrochemical activity and stability. The conjugation length and electrical conductivity of pTS doped PPy/C composites increase with the increase in dopant concentration. The pTS doped PPy/C composite synthesized using equimolar concentration (0.1 M) of pTS to pyrrole shows the maximum specific capacitance of ˜395 F/g in 0.5 M Na2SO4 aqueous solution with significant stability ˜95% capacitance retention after ˜500 cycles.Type: GrantFiled: August 21, 2014Date of Patent: September 11, 2018Assignee: Council of Scientific & Industrial ResearchInventors: Amit Kumar, Hari Krishna Singh, Rajiv Kumar Singh, Ramadhar Singh, Pankaj Srivastava
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Patent number: 8784635Abstract: The invention relates to a method for grafting an organic film onto an electrically conductive or semiconductive surface by electro-reduction of a solution, wherein the solution comprises one diazonium salt and one monomer bearing at least one chain polymerizable functional group. During the electrolyzing process, at least one protocol consisting of an electrical polarization of the surface by applying a variable potential over at least a range of values which are more cathodic that the reduction or peak potential of all diazonium salts in said solution is applied. The invention also relates to an electrically conducting or semiconducting surface obtained by implementing this method. The invention further relates to electrolytic compositions.Type: GrantFiled: February 28, 2007Date of Patent: July 22, 2014Assignees: Alchimer, Alchimedics, Inc.Inventor: Christophe Bureau
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Publication number: 20140042031Abstract: The present invention provides a cationic electrodeposition coating composition comprising: a specific amino group-containing modified epoxy resin (A); a blocked polyisocyanate curing agent (B); a water-soluble zirconium compound (C); and sulfamic acid, wherein the water-soluble zirconium compound (C) is present in an amount of 10 to 10,000 ppm, calculated as the mass of the elemental zirconium, relative to the mass of the cationic electrodeposition coating composition.Type: ApplicationFiled: April 4, 2012Publication date: February 13, 2014Applicants: Kansai Paint Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Eisaku Okada, Kouji Takezoe, Hirokazu Hayashi
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Publication number: 20130177805Abstract: An electrochemical generator includes a first electrode covered by a passivation layer having a compound formed by repetition of a pattern of the following formula (7): in which: n is an integer comprised between 1 and 10, preferably between 1 and 4; R1 and R2 are identical or different and chosen independently from the group formed by —CH2—, a cyclic or acyclic, linear or branched alkyl chain; R3 is chosen from the group formed by —CH3, a cyclic or acyclic, linear or branched alkyl chain, and a group of the following formula (8): in which: N is a mono or polycyclic, aromatic hydrocarbonated group chosen from the group formed by phenyl, aryl groups, condensed polyaromatic groups, which may be substituted; R4 is chosen from the group formed by —CH2-, a cyclic or acyclic, linear or branched alkyl chain; and A is identical to or different from A?.Type: ApplicationFiled: September 19, 2011Publication date: July 11, 2013Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, UNIVERSITE JOSEPH FOURIER, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Laureline Crepel, Fannie Alloin, Jean-Claude Lepretre, Sebastien Martinet
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Publication number: 20120222962Abstract: The present invention provides a cationic electrodeposition coating composition that has excellent throwing power and that can form a thin film with excellent finish and anti-corrosion properties. The composition has a cationic epoxy resin (A) and a blocked polyisocyanate (B), the cationic epoxy resin (A) obtained by reacting an epoxy resin (A1) with an amino group-containing compound (A2). The epoxy resin (A1) having a catechol skeleton structure (a) and obtained by reacting an epoxy resin (a1) containing at least one epoxy group per molecule and having an epoxy equivalent of 180 to 500 with a phenolic hydroxyl group-containing compound (a2) containing at least one phenolic hydroxyl group per molecule in amounts wherein the ratio of the number of moles of epoxy groups in the epoxy resin (a1) to the number of moles of phenolic hydroxyl groups in the phenolic hydroxyl group-containing compound (a2) is 1.3 to 2.0.Type: ApplicationFiled: February 9, 2012Publication date: September 6, 2012Applicant: Kansai Paint Co., Ltd.Inventors: Shigeo NISHIGUCHI, Akihiko SHIMASAKI
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Publication number: 20120085652Abstract: The present invention relates to a metal or alloy substrate having a modified surface, and more particularly a stainless steel substrate, produced by the use of an electrochemical process. The invention also relates generally to a method for producing a stable and covalent association between self-assembled layers and a surface of a metal substrate, and more particularly a stainless steel substrate. The metal or alloy substrate, and more particularly the stainless steel substrate, is modified by the covalent attachment of self-assembled monolayers on the surface by using an electrochemical process. These functionalized self-assembled monolayers provide a link to irreversibly attach or immobilize an active or nonactive agent.Type: ApplicationFiled: October 7, 2011Publication date: April 12, 2012Inventors: Sasha Omanovic, Jeffrey Harvey, Hesam Dadafarin
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Publication number: 20110266153Abstract: A method of improving the material properties of a composite by electrodepositing particular polymers, organic compounds or inorganic compounds onto electrically conductive fibrous substrates, whether individual fibers or as a fabric, to form composites of improved structural properties and having particular physical properties such as being ice phobic, fire resistant, or electrically conductive.Type: ApplicationFiled: May 3, 2011Publication date: November 3, 2011Inventors: Norman R. Byrd, Stephen C. Amundson, Robert H. Coker, III
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Patent number: 7591937Abstract: The invention relates to a method of fixing macro-objects to an electricity conducting- or semi-conducting surface by means of electrografting. The invention also relates to the electricity conducting- or semi-conducting-surfaces obtained using the aforementioned method and to the applications of same.Type: GrantFiled: March 19, 2003Date of Patent: September 22, 2009Assignee: Commissariat a l'Energie AtomiqueInventors: Christophe Bureau, Guy Deniau, José Gonzalez, Serge Palacin
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Publication number: 20090186184Abstract: A component of a substrate processing apparatus that performs plasma processing on a substrate includes a base mainly formed of an aluminum alloy containing silicon. A film is formed on the surface of the base by an anodic oxidation process which includes connecting the component to an anode of a power supply and immersing the component in a solution mainly formed of an organic acid. The film is impregnated with ethyl silicate.Type: ApplicationFiled: January 16, 2009Publication date: July 23, 2009Applicant: TOKYO ELECTRON LIMITEDInventor: Koji Mitsuhashi
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Publication number: 20080289969Abstract: The present invention provides a cationic electrodeposition coating composition having good appearance of coated film and high throwing power, and a method for making an amine-modified epoxy resin used for the cationic electrodeposition coating composition. The present invention relates to a method for making an amine-modified epoxy resin comprised in a cationic electrodeposition coating composition comprising the steps of: providing a half blocked isocyanate by reaction of an isocyanate compound with a blocking agent, preparing a blocked prepolymer by reaction of the half blocked isocyanate with a polyol, forming an epoxy resin containing oxazolidone ring by reaction of the blocked prepolymer with a diglycidyl ether type epoxy resin, chain-extending the epoxy resin containing oxazolidone ring with at least saturated or non-saturated hydrocarbon group containing dicarboxylic acid, and modifying the chain-extended epoxy resin with an amine.Type: ApplicationFiled: July 30, 2008Publication date: November 27, 2008Inventors: Shinsuke Shirakawa, Toshiaki Indou, Yasuo Mihara, Naotaka Kitamura
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Patent number: 6808615Abstract: Aluminum surface mount capacitors containing one or more anode foil coupons are initially anodized in an aqueous phosphate solution in order to produce an anodic oxide film having extreme resistance to hydration and attack by corrosive anions for the purpose of producing surface mount capacitors at high yield and of high stability.Type: GrantFiled: July 12, 2002Date of Patent: October 26, 2004Assignee: Kemet Electronics CorporationInventors: Philip Michael Lessner, Brian John Melody, John Tony Kinard, Erik Karlsen Reed, Albert Kennedy Harrington, Daniel F. Persico, David Alexander Wheeler
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Publication number: 20040144655Abstract: Process for depositing by electrografting a strong adherent polymer coating onto an electrically conductive surface comprising the step of electrochemical grafting of an active monomer for forming a primer coating P onto the surface and having as general formula: X0 (meth)acrylate wherein X is either part of a preformed polymer or is an intermediate agent for polyaddition reaction or is an anchoring group for attachment of a molecule having at least one complementary reactive group. Such process allows formation of new primer by one-step electro-grafting of a macromonomer. Such process also allows further modification of an initial electrografted polymer to increase the coating thickness by the grafting-from technique. Such process also allows to graft onto the primer coating compounds like functional polymer, peptide, protein, oligonucleotide, dyes, drugs, anti-bacterian compounds.Type: ApplicationFiled: December 4, 2003Publication date: July 29, 2004Inventors: Olivier Bertrand, Robert Jerome, Sandrine Gautier, Veronique Maquet, Christophe Detrembleur, Christine Jerome, Samuel Voccia, Michael Claes, Xudong Lou, David-Emmanuel Labaye
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Patent number: 6758957Abstract: Carbon nanoparticles including both nanofilaments and nanotubes produced by an electrochemical deposition method from organic solutions at room temperature, in which the formation and growth of carbon nanoparticles are stimulated by the catalyst, such as iron and nickel. It has been found that the electrochemical deposition conditions have a strong influence on the growth phenomenon of the carbon nanotubes. Scanning electron microscope (SEM) and transmitting electron microscope (TEM) characterizations show that the diameter of nanotubes is of the order of approximately 100 nm, and the length of filaments can be up to approximately 50 &mgr;m, depending on the size of catalyst particles.Type: GrantFiled: April 9, 2002Date of Patent: July 6, 2004Assignee: University of Central FloridaInventors: Dan Zhou, Lee Chow
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Publication number: 20040040858Abstract: What is disclosed is a no-rinse autodeposition process to dip-apply a metal part in an aqueous resin coating bath with an immersion time and, wherein the removal rate of the dipped part is kept equal or below drainage rate of mobile liquid portion, such that upon removal of the part, drip edge formation is minimized and a DFT is maintained within acceptable tolerance levels.Type: ApplicationFiled: August 30, 2002Publication date: March 4, 2004Applicant: Lord CorporationInventors: James B. Williams, Mark A. Weih, Brett A. Rearick
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Patent number: 6375821Abstract: The invention concerns a method for forming a coating on conductive particles by grafting a polymer and/or a copolymer of the particles from a bath containing at least a monomer from which the polymer and/or copolymer is formed. The method consists of producing the grafting by electrochemical reduction of the monomer in an electrolytic solution, where at least a cathode and an anode are provided, and containing an aprotic solvent, a support electrolyte and the monomer(s) required for polymerizing or copolymerizing the coating, by suspending the particles and moving the solution so as to produce an intermittent contact between the particles and the cathode, and to form, by polymerization or copolymerization, the coating on the particles by applying an electric potential.Type: GrantFiled: June 19, 2000Date of Patent: April 23, 2002Assignee: Cipari S.A.Inventors: Robert Jerome, Lucien Martinot, Marc Mertens, Isabelle Bodart, Philippe Dubois
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Patent number: 5338413Abstract: Method for the preparation of a polymeric shaped article containing an electrically conductive polymer wherein a base shaped article possessing electrically conductive properties is moved along an anode, at least part of the article being in contact with the anode, in the presence of an electrolyte-containing medium containing monomer units, which on polymerization form an electrically conductive polymer and wherein a voltage is applied between the anode and a second electrode which is in contact with the electrolyte-containing medium. It has appeared that, in the method according to the invention, the shaped article does not adhere to the electrode so that the method may be practiced continuously. A further advantage of the shaped article failing to adhere to the electrode is that the method according to the invention generates very little waste.Type: GrantFiled: July 15, 1993Date of Patent: August 16, 1994Assignee: DSM N.V.Inventors: Hans K. van Dijk, Ronald M. A. M. Schellekens